Access Network Scheduling-Free Slot Alignment for Low-Latency Uplink
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Solution Overview
Problem
The coexistence of orchestratable and unorchestratable industrial devices in wireless communication systems poses challenges in reducing data transmission delay, optimizing resource utilization, and balancing device configuration, which are focal points in current research.
Innovation Solution
The access network device adjusts air interface scheduling moments for unorchestratable devices based on received information, allocating scheduling-free slots and indicating orchestratable devices to adjust their transmission moments, thereby reducing time intervals and data transmission delays without requiring network-wide upgrades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the service packet transmission moment of unorchestratable devices is kept fixed, then device compatibility and ease of operation are maintained, but data transmission delay increases due to the time interval between transmission moment and air interface scheduling moment
Solution Approach 1:
The patent introduces an access network device as an intermediary that receives first information indicating the service packet transmission moment from unorchestratable devices, determines appropriate air interface scheduling moments, and sends configuration information back to these devices. This mediator resolves the contradiction by enabling delay optimization through dynamic scheduling adjustment without requiring changes to the unorchestratable devices themselves, thus maintaining ease of operation while reducing transmission delay.
2Loss of time
If air interface scheduling moments are dynamically adjusted for unorchestratable devices, then data transmission delay is reduced, but device complexity and system complexity increase
Solution Approach 1:
The access network device serves as a mediator that handles the complexity of dynamic scheduling adjustments. It receives transmission moment information from unorchestratable devices, determines optimal air interface scheduling moments, and manages the configuration information distribution. This concentrates the scheduling complexity in the network infrastructure rather than in the devices themselves, reducing device complexity while enabling dynamic adjustment to minimize time intervals.
3Productivity
If wireless communication resources are allocated to accommodate unorchestratable devices with fixed transmission moments, then device compatibility is maintained, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic air interface scheduling where the access network device determines scheduling moments based on the service packet transmission moments received from unorchestratable devices. This dynamic adjustment allows the system to adapt resource allocation to actual transmission needs, improving resource utilization efficiency while maintaining compatibility with unorchestratable devices through the configuration information exchange mechanism.
4Productivity
If network-wide device upgrades are implemented to enable orchestration of all devices, then scheduling flexibility and resource utilization improve, but cost consumption increases significantly
Solution Approach 1:
The access network device acts as an intermediary that enables scheduling optimization for unorchestratable devices without requiring device upgrades. By receiving transmission moment information and determining appropriate scheduling moments, the system achieves improved resource utilization through network-side intelligence rather than device-side capabilities, avoiding significant deployment costs while maintaining scheduling flexibility.
Data Source
AI summary
Embodiments of this application provide a communication method and a communication apparatus. The method includes: A first apparatus sends first information to an access network device through a core network, where the first information indicates the access network device to adjust a wireless air interface scheduling-free moment of a second apparatus based on a first moment, and the first moment is a service packet transmission moment of the second apparatus; and the access network device sends first configuration information to the second apparatus based on the first information, where the first configuration information includes an air interface scheduling-free slot resource allocated by the access network device to the second apparatus. In this application, the air interface scheduling moment corresponding to the second apparatus is adjusted to reduce a transmission delay and improve communication performance.